Nitrated carbon fiber loaded bismuth oxyhalide nanoflower and preparation method of nanoflower

A technology of bismuth oxyhalide and carbon fiber, which is applied in the environmental protection field of photocatalytic degradation of organic pollutants, can solve problems such as secondary pollution, and achieve the effects of repeated use, simple synthesis method, and low preparation cost

Active Publication Date: 2014-07-16
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a carbon fiber-loaded bismuth oxyhalide nanoflower treated with nitric acid and its preparation method. The BiOX / ACF composite photocatalytic material synthesized by this method can easily realize the repeated use of BiOX and solve the secondary pollution Problem, BiOX / ACF photocatalyst also has high photocatalytic activity, which has good value for degrading organic pollutants in practical applications

Method used

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  • Nitrated carbon fiber loaded bismuth oxyhalide nanoflower and preparation method of nanoflower
  • Nitrated carbon fiber loaded bismuth oxyhalide nanoflower and preparation method of nanoflower
  • Nitrated carbon fiber loaded bismuth oxyhalide nanoflower and preparation method of nanoflower

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Effect test

Embodiment 1

[0029] Measure two parts of 40ml ethylene glycol methyl ether and join in the beaker, take by weighing 1.03g ionic liquid (C 16 MimCl) and 0.97g bismuth nitrate are added to above-mentioned solution respectively, constantly stirring makes two kinds of materials be fully dissolved in the ethylene glycol methyl ether, forms uniform solution, then the ethylene glycol methyl ether solution of ionic liquid is slowly added to In the bismuth nitrate ethylene glycol methyl ether solution, stir for 20 minutes to make the solution uniform. Pour the mixed solution into a polytetrafluoroethylene-lined autoclave with a volume of 100ml, then place the nitric acid-treated carbon fiber in the autoclave, react at 160°C for 1 hour, cool at room temperature, and wash with deionized water and absolute ethanol The samples were washed three times and dried for 12 hours to obtain the product BiOCl / ACF.

[0030] attached figure 1 (red, green) are respectively the X-ray diffraction pattern of the pr...

Embodiment 2

[0032] Measure two parts of 40ml ethylene glycol methyl ether and join in the beaker, weigh 1.16g ionic liquid (C 16 MimBr) and 0.97g bismuth nitrate are added to above-mentioned solution respectively, constantly stirring makes two kinds of materials be fully dissolved in the ethylene glycol methyl ether, forms uniform solution, then the ethylene glycol methyl ether solution of ionic liquid is slowly added to In the bismuth nitrate ethylene glycol methyl ether solution, stir for 20 minutes to make the solution uniform. Pour the mixed solution into a polytetrafluoroethylene-lined autoclave with a volume of 100ml, then place the nitric acid-treated carbon fiber in the autoclave, react at 160°C for 1 hour, cool at room temperature, and wash with deionized water and absolute ethanol The samples were washed three times and dried for 12 hours to obtain the product BiOBr / ACF.

[0033] attached image 3 (red, green) are the X-ray diffraction pattern of the product obtained in this e...

Embodiment 3

[0035] Measure two parts of 30ml ethylene glycol methyl ether and join in the beaker, weigh 0.77g ionic liquid (C 16 MimCl) and 0.73g bismuth nitrate are added to above-mentioned solution respectively, constantly stirring makes two kinds of materials be fully dissolved in the ethylene glycol methyl ether, forms uniform solution, then the ethylene glycol methyl ether solution of ionic liquid is slowly added to In the bismuth nitrate ethylene glycol methyl ether solution, stir for 20 minutes to make the solution uniform. Pour the mixed solution into a polytetrafluoroethylene-lined autoclave with a volume of 100ml, then place the nitric acid-treated carbon fiber in the autoclave, react at 160°C for 2 hours, cool at room temperature, and wash with deionized water and absolute ethanol The samples were washed three times and dried for 12 hours to obtain the product BiOCl / ACF.

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Abstract

The invention relates to a nitrated carbon fiber loaded bismuth oxyhalide nanoflower and a preparation method of the nanoflower. The preparation method of the nanoflower comprises the following steps: respectively dissolving a halogenous ionic solution and bismuth nitrate in ethylene glycol monomethyl ether, slowly adding the halogenous ionic solution into a bismuth nitrate solution after the halogenous ionic solution and the bismuth nitrate are fully dissolved in the ethylene glycol monomethyl ether, evenly stirring and mixing the mixed solution, pouring the mixed solution to a high-pressure reaction kettle with a polytetrafluoroethylene liner, then placing nitrated carbon fiber in the kettle, reacting for 0.5-6 hours in a drying oven at the temperature of 150-160 DEG C, naturally cooling and then washing and drying to obtain a product. Through the nitrated carbon fiber loaded bismuth oxyhalide nanoflower, the BiOX is reused and the problem of secondary pollution is solved; ACF (Active Carbon Fiber) is excellent in adsorption property and capable of absorbing organic pollutants and facilitating the photo-catalysis.

Description

technical field [0001] The invention relates to a method for preparing carbon fiber-loaded BiOX (X=Cl, Br) nanoflowers treated with nitric acid, and belongs to the environmental protection technical field of photocatalytic degradation of organic pollutants. Background technique [0002] In recent years, photocatalytic technology has been widely used in the control of environmental pollution and energy shortage. For example: use solar energy to decompose organic pollutants in wastewater, and use sunlight to decompose water to generate hydrogen energy. At present, many photocatalysts have been found, and BiOX is an emerging high-efficiency photocatalytic material, which has a layered structure, can effectively separate photogenerated electrons and holes, and can respond to visible light at the same time, and is non-toxic and low in cost. , so BiOX has aroused the strong attention of scholars, has become a very important material in the field of photocatalysis, and is expected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/06B01J35/02B01J20/20B01J20/28
Inventor 张晓阳姜再勇黄柏标秦晓燕
Owner SHANDONG UNIV
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